PHP Manual
Statistic 函数
Returns the power sum of a vector

stats_stat_powersum

(PECL stats >= 1.0.0)

stats_stat_powersum — Returns the power sum of a vector

说明

stats_stat_powersum ( array $arr , float $power ) : float

Returns the sum of the power-th power of a vector represented as an array arr.

参数

arr: The input array
power: The power

返回值

Returns the power sum of the input array.

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